No.7Upgrade your Worcester Greenstar boiler with the genuine Worcester Greenstar 12Ri,15Ri,18Ri,24Ri PCB, model number 8716119385. This essential component is expertly crafted in the United Kingdom, ensuring top-quality and reliability for your heating system. Designed specifically for compatibility with a range of Worcester boilers, this PCB is a crucial part of maintaining optimal performance and efficiency. With the convenience of being supplied as a single unit, the installation process is streamlined, getting your boiler back to normal operation in no time. Whether you're a heating professional or a DIY enthusiast, this genuine Worcester part is a straightforward choice for restoring your boiler to its peak functionality.